(19)

(11)

EP 1 960 090 A2

(12)

(88) Date of publication A3: 03.04.2008 (43) Date of publication: 27.08.2008 Bulletin 2008/35 (21) Application number: 06849962.3 (22) Date of filing: 13.12.2006

(51) International Patent Classification (IPC):  B01D 59/44(2006.01) H01J 49/04(2006.01) (86) International application number: PCT/US2006/047828 (87) International publication number: WO 2007/089339 (09.08.2007 Gazette 2007/32)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 13.12.2005 US 750277 P (71) Applicant: Brigham Young University Provo, UT 84602-1231 (US)

(72) Inventors: LAMMERT, Stephen, A. Glenburn, ME 04401-1242 (US) TOLLEY, Samuel, E. Springville, UT 84663 (US) LEE, Edgar, D. Highland, UT 84003 (US) JONES, Jeffrey, L. Orem, UT 84057 (US) WAITE, Randall, W. Springville, UT 84663 (US) LEE, Milton Pleasant Grove, UT 84062 (US) (74) Representative: Hasler, Erich et al c/o Riederer Hasler & Partner Patentanwälte AG Kappelestrasse 15 9492 Eschen 9492 Eschen (LI)